Authorities are investigating two separate police cruiser crashes in Whitman and Brockton that sent a total of seven people to area hospitals late Saturday night.

In the Whitman crash, two Whitman police officers were among five people injured in a three-vehicle crash at routes 18 and 27 late Saturday night, police and fire officials said.

Officials would not identify the two officers or the three others injured in the crash. All five people were treated and released from area hospitals, officials said.

The crash occurred while the two Whitman officers, traveling in the same police SUV, were responding to a burglar alarm at a Whitman laundromat at 25 West St., Police Chief Scott Benton said in a statement Sunday.

“The cruiser did have its emergency lights activated as well as the opticom, siren and horn,” Benton said.

The cruiser was traveling east on Route 27 when it collided with a vehicle traveling north on Route 18 about 11:18 p.m. Saturday, Benton said. The northbound vehicle then collided with a third vehicle that was stopped at the traffic light in the westbound lane of Route 27, he said.

Airbags were deployed in both the police SUV and the vehicle traveling north on Route 18, Benton said.

The northbound vehicle on Route 18 was carrying a female driver and male passenger, he said. A pregnant woman was driving the vehicle that had been stopped at the traffic light, he said. That vehicle also had a male passenger, he said.

Whitman Deputy Fire Chief Joseph Feeney, who responded to the crash, said all five people were sent by ambulance to Signature Healthcare Brockton Hospital and South Shore Hospital in Weymouth.

Five ambulances – including two from Whitman, one from Hanson and one from East Bridgewater – responded to transport the victims.

Meanwhile, about 40 minutes earlier in Brockton, a state trooper and an unlicensed driver suffered minor injuries after the state police cruiser and a 2006 Dodge Magnum crashed at Warren Avenue and Legion Parkway, said Lt. Daniel G. Richard, a state police spokesman.

Richard said that the 10:40 p.m. crash in Brockton on Saturday, which is being investigated, did not occur as a result of a pursuit.

“I don’t know the circumstances of the crash,” Richard said Sunday.

Both drivers were sent by ambulance to local hospitals.

Trooper Robert Dubois of the Middleboro barracks was treated and released from Signature Healthcare Brockton Hospital, while the driver of the Dodge, Michael A. Gomes, 27, of Whitman, was sent to Good Samaritan Medical Center, Richard said. Gomes’ condition was not known Sunday.

Gomes will be summonsed to court at a later date for driving without a license and not wearing a seat belt, Richard said.

The Whitman crash is being investigated by the State Police Collision Analysis and Reconstruction Unit and Whitman police.